Heat Transfer

Front

What is heat transfer?

Back

Heat transfer is the movement of thermal energy from one object or substance to another due to a temperature difference.

Front

What are the three types of heat transfer?

Back

The three types of heat transfer are conduction, convection, and radiation.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials.

Front

What is convection?

Back

Convection is the transfer of heat through liquids and gases, involving the movement of the fluid itself.

Front

What is radiation?

Back

Radiation is the transfer of heat through electromagnetic waves, such as sunlight.

Front

How does conduction occur?

Back

Conduction occurs when two objects at different temperatures are in direct contact, allowing heat to flow from the hotter object to the cooler one.

Front

Give an example of conduction.

Back

An example of conduction is a person holding a snowball, where heat is transferred from the hand to the snowball.

Front

What is an example of convection?

Back

An example of convection is a pot of boiling water, where hot water rises and cooler water sinks.

Front

How does radiation differ from conduction and convection?

Back

Radiation does not require a medium (like air or water) to transfer heat, while conduction and convection do.

Front

What happens to particles in a substance during convection?

Back

In convection, warmer particles move up while cooler particles move down, creating a circulation pattern.